mone-il



(No Model.)

i 4 Sheets-Sheet 1.' J. MoNEIL I TUBE OUTTER EXPANDER, AND HEADER; No. 412,652. Patented Oct. 8, 1889.

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4 Sheets-Sheet 2.

Patented Oct. 8, 1889.

WITNESSES:

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J. M-cNEIL.

TUBE G'UT'I'BR, EXPANDBR, AND BEADER. No. 412, 52. 7 Patented Oct. '8, 1889.

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NMITED STATES PATENT OFFICE.

JAMES MONEIL, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR or ONE-HALF TO THOMAS MONEIL, OF SAME PLACE.

TUBE CUTTER, 'EXPANDER, AND BEADER.

SPECIFICATION forming part of Letters Patent No. 412,652, dated October 8, 1889.

Application filed June 29, 1888. Serial No. 278,533. (No model.)

To all whom, it may concern} Be it known that I, JAMES MGNEIL, citizen of the United States, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented or discovered E a certain new and useful Improvement in Tube Cutters, Expanders, and Beaders, of which improvement the following is a specification. p

IO The object of my invention is to provide a simple and effective tool by which the several operations necessary in setting and securing boiler-tubes in tube-Sheets-that is to say, cutting off the tubes to proper length,

I 5 expanding them to fit closely the holesin the tube-sheets, and beading or turning over their outer ends -may be conveniently and expeditiously performed.

To this end my invention, generally stated, consists in the combination, with an expansible chuck and a supporting-spindle fitting centrally therein, of a rotatable head or toolcarrier mounted upon the spindle,one or more adjustable dies or boxes fittingin the head 2 5 and adapted to receive a rotary cutter or an expanding or a beading roller, and feed mechanism for forcing the adjustable dies out- .wardly from the axial line of the supportingspindle.

The improvement claimed fully set forth.

In the accompanying drawings, Figure 1 is a longitudinal central section through a tool embodying my invention as applied to and operating to cut off the end of a boiler-tube;

Fig. 2, a transverse section through the chuck of the same at the line as of Fig. 1; Fig. 3, an end view in elevation of the head or carrier as seen from the left or inner side; Fig. 4:, a transverse section through the'pawl-andratchet mechanism at the line y y of Fig. 1;

Fig. 5, a longitudinal section through the head at the line .2 z of Fig. 3; Figs. 6 and 7,

transverse sections, on an enlarged scale,

5 through the head at the line wyw of Fig. 1,

showing, respectively, the application of a cutter anda beading-roller; Fig. 8, a longitudinal central section, on an enlarged scale, through the head, with the beading-roller shown in Fig. 7 in operative position; Fig. 9,

0 is hereinafter a longitudinal central section illustrating a modification, and Fig. 10 a transverse section through the same at the line "0 o of Fig. 9. r In the practice of my invention I provide an expansible chuck or holding-block 3, which serves to fix and hold the tool in position on the tube 1, which is to be secured in a tubesheet 2. The chuck 3 is composed of three or more cylindrical sections separated radi- 6o ally and held inconnection with the capacity of radial expansion by a light split ring of elastic metal 4 passing around the central portion of the sections. lhe sections of the chuck are serrated upon their outer surfaces to enable them to fit tightly against the inside of the tube when expanded, the serrations being either circular, V-shaped projections, or right-and-left V-threads, as preferred. The chuck is bored out conically or on a taper in line with itsaxis to receive the tapered end portion 5 of a supporting-spindle 6, and aunt 7 is fitted in acentral counterbore in the chuck and provided with pins or projections 8 to preventits rotation therein. A cylindrical external thread 9 is out upon the middle of the end portion 5 of the spindle 6, the unthreaded part of the end 5 being formed with a continuous taper, said thread engaging that of the nut 7. I By the rotation of the spindle 6, the nut 7 being stationary, longitudinal movement will be imparted to the spindle, such movement, when in the direction of the right-hand end of the spindle, forcing the sections of the chuck3 outwardly bythe wedging action of the tapered end portion 5 and holding the chuck tightly in position in the tube 1. Rotation of the spindle in the opposite direction withdraws the end portion 5 from its bearing upon the chucksections and releases the same from pressure A to admit of the withdrawal of the chuck.

Atubular head or tool-carrier 10 is mounted freely upon the spindle 6, so as to be rotatable thereon by a ratchet and pawl or other 5 suitable mechanism, said head serving as a receptacle for the cutting, expanding, and beading tools, to be presently described. The headlO is set at a proper distance from the outer face of the flue-sheet 2 by a gage 11,

which fits closely in a longitudinal dovetailed recess 12 in the head and may be driven to any desired length therein, and the head is fixed in position relatively to the chuck 3 by a nut 13 engaging an external thread 14 on the outer end of the spindle 6, its inner end bearing against a helical spring 15, the opposite end of which bears against the chuck 3.

- The nut 13 is looked upon the thread 14 of the spindle by a lock-nut 16 engaging the same, adjoining the nut 13, and to provide for the rotation of the spindle in direction to release the chuck when desired a releasing-screw 17, having a squared head 18, engages the thread of the lock-nut 16, adjoining the outer end of and in line with the spindle 6.

The rotation of the head is preferably effected by means of a pawl-lever 19, pivoted by a bolt 20 to a pair of swinging arms 21, fitting freely upon the head 10 between a shoulder formed thereon and a removable washer 22, secured thereto by a set-screw 23. A pawl 24 upon the inner end of the pawllever 19 engages the teeth of a ratchet-wheel 25, secured upon the head 10 by a set-screw 26, and acts to rotate the head in the ordinary manner. By removing the pivot-bolt 20 and reversing the position of the pawl-lever, so that the pawl may bear against the teeth of the ratchet-wheel upon the opposite side of the axis of the spindle 6, the latter may be rotated, when desired, in the opposite direction.

The cutting, expanding, and beading tools are mounted in adjustable dies or boxes 27, fitting in the head or carrier 10 and adapted to be forced outwardly from the axis of the spindle 6 to effect the feed of the tools.

Referring to Figs. 1 and 6, which illustrate the operation of the device in cutting off the end of a tube, a circular cutter 28 is mounted upon a shaft 29, which is journaled in bearings in a die or box 27, fitting freely in a transverse opening in the head 10 and resting on a ring or washer 30, interposed as a distance-piece between the die 27 and an adj usting or feed block 31 to afford proper clearance and traverse to the cutter. The block 31 fits in the opening of the head which receives the die 27, and is provided with a central recess for the free passage of the spindle 6, so that it may be moved transversely thereto to effect the outward feed of the cutter without interference from the spindle. Such movement is in this instance effected by a feed-screw 32, mounted longitudinally and turning freely in. the head 10 and engaging an internal thread in a wedge 33, the inclined side of which fits in a guideway in and bears against an inclined face 34 on the end of the adj usting-block 29 farthest from the die or box 27. Longitudinal movement of the feed-screw is prevented by a nut 35 on its inner end, fitting against a capplate 36, secured to the adjacent end of the head 10,' and rotation of the feed-screw in either direction will consequently move the lease and inward movement of the cutter in accordance with the direction of rotation of the feed-screw. The die27 is prevented from dropping out of the opening in the head 10 when the tool is removed from the tube by a screw 37, which engages a thread in the head, and may be set up sothat its end will project into a lateral groove on the die 27, having a shoulder at its inner end, without bearing against the die or interfering with its transverse movements in the head. Two or more cutters, each mounted in a separate die, may be employed, if desired, the dies being simultaneously fed outwardly and released by a single adjusting or feed block; or an expanding tool or tools may, as shown, he fitted in the head, so as to coincidently cut off and expand the tube.

As shown in Figs. 5 to 7, inclusive, two conical expanding-rollers 38 are fixed upon short shafts 39 and mounted in movable bearings in the head 10 on opposite sides of the adjusting-block 31. The inner ends of the shafts 39 are journaled in bearings 40, fitted to slide in inclined longitudinal recesses in the head, and their outer ends rotate freely in hearings in the end of feed-screws 41, engaging internal'threads in the head. By the rotation of the feed-screws 41 in one direction the bearings 40 are moved along the inclined recesses of the head, thereby forcing the conical expanding-rollers 38 outwardly from the axial line of the spindle and expanding the tube into the opening of the tube-sheet, as shown in Fig. 5. Springs 42, interposed between the bearings 40 and seats in the cap 36 of the head 10, serve to keep the shafts 39 in'their bearings in the screws 41 when the latter are turned in the opposite direction to release the rollers 38 from bearing upon the inside of the tube and cause the shafts and rollers to follow the screws in their longitudinal movements to the right induced by such rotation. The rollers 38 also serve to keep the expanded tube in place during the subsequent operation of the roller or rollers by which the projecting end of the tube is headed or turned over on the tube-sheet.

The heading of ihe tube is effected by a beading-roller 43, Figs. 7 and 8, which is suitably grooved on its periphery, and is mounted and rotates freely upon a pin 44, secured in ablock 45, adapted to fit in the adjustable die 27. After the end of the tube has been cut oil, the die and cutter are withdrawn from the head, the cutter removed. and the block 45 inserted in the die and held therein by the pin 29. The die 27 is turned one-quarter of a revolution in the recess of the head 10, so that the pin 29 shall be ata right angle to the axis of the spindle 6, in order that the block 45 may be oscillated upon the pin 29 to set the carrying the tools are set out from the axis tube.

pin44 of -the beading-roller at the proper angle for the roller mam uponthe end of the .The angle may be adjusted by the set-screw 37 by bringing the same to the required bearing against the adjacent end of the block 45, or an adjusting-sleeve 46 may be fitted upon an external thread on the head 10 and rotated thereon to bear against the outer portion of the pin 44, which is prolonged for that purposeyas' shown in dotted lines in Fig. 8. The beading-roller 38 is forced against the end'of the tube with a pressure-proper to efiect its work by adjustment of the nuts 13 and 16 of the main spindle 6, and in the rotation of the head 10 forms the bead completely around the end of the tube. The expanding-rollers 38, being brought to a bearing against the inside of the tube by the feedscrews 41, serve to keep the tube in place during the beading operation.

Two 01' more beading-rollers acting coincidently upon the end of the tube may be employed if desired.

Figs. 9 and 10 illustrate a modification of the adjusting or feed block by which the dies of the main spindle 6,ill11strating also the employment of a multiple series of dies and v of rollers for expanding the tubes on both respondingly-inclined faces 50, formed upon the ends of the dies 27, fit against the faces49 of the adjusting-block, so that by the movement of the latter to the left the dies and the rollers supported therein are forced outwardly from the axial line of the main spindle, as required, to bring the rollers to the proper bearing upon the tube for the performance of their work. Movement of the adj ustingblock in the opposite direction releases the dies and rollers from the pressure applied thereto and admits of their-withdrawal, as required. The longitudinal traverse of the adjusting-block '3l is effected by means of a sleeve 51, provided with an internal thread which engages the thread 48 of the adj ustingblock, and fitting, with the capacity of free rotation, in the outer end of the head 10, in which it is held as against longitudinal movement by a nut 52. The rotation of the adj listing-block is prevented by a stop-pin 53,

fixed inthe head 10 and engaging a longi-' tudinal groove 54 in the block, and rotation of the sleeve 51 in either direction will con-.

sequently impart longitudinal movement to the adjusting-block 31 and set out or release, as the case may be, the dies 27 and the rollers supported therein. The expanding-rollers 38 are in this case of cylindrical form and are provided with a collar or swell 55 on each end, so as to expand the tube on both sides of the tube-sheet, and are, as in the previous instance,

mounted upon removable pins 29 in the dies :27. The dies are adapted to receive either cutting or beading rollers, the operation of each in cutting or beading the tube, respectances for setting and securing tubes heretofore known in the art there are embodied chucks for securing the appliance in position, rotating heads for carrying the tools, cutting, expanding, and beading rollers for performing the several required operations upon the tube, feed mechanism for advancing the tools to the Work, and supportingmandrels, and said devices separately, as well as their com bination broadly, I therefore distinctly disclaim.

I claim as my invention and desire to secure by Letters Patent 1. The combination of a chuck or holdingblock, a supporting-spindle fitting centrally therein, a rotatable head or tool carrier mounted upon the spindle, an adjustable die or boxfitted to move within the head radially to the axis of the spindle and adapted to receive and support interchangeably a cuttingroller, an expanding-roller, or a beading-roller, and an adjusting-block movable within the headand provided with an inclined or wedging face for forcing the die outwardly from the axial line of the spindle, substantially as set forth.

2. The combination of a chuck or holdingblock, a supporting-spindle fitting centrally therein, a rotatable head or tool carrier mounted upon the spindle, an adjustable die or box'fitt-ed to move Within the head radially to the axis of the spindle, a beading-roller journaled radially to the axis of the spindle upon a block pivoted to the die, an adj ustingblock movable within the head and provided with an inclined or wedging face for forcing the die outwardly from the axial line of the spindle, and an adj listing-screw engaging the head andbearing upon the shaft of the beading-roller in position to vary the angular po sition of said shaft .relatively to the axial line of the spindle, substantially as set forth.

3. The combination of a radially-divided series of chuck-segments, which are serrated peripherally, a separate nut fitting centrally in the series of segments, and a supportingspindle having a conical or tapered end portion fitting a corresponding central bore in the segments and provided with a thread engaging the thread of the nut, substantially as set forth.

4. The combination of an expansible chuck or holding-block composed of a radially-di- IIO vided series of peripherally-serrated segments mounted in an adjustable die or box in the and a separate nut fitting centrally in the head, substantially as set forth. 10 series of segments, a supporting-spindle hav- In testimony whereof I have hereunto set my ing a conical or tapered end portion fitting a hand.

corresponding central bore in the segments JAMES MCNEIL.

and provided with a thread engaging the Witnesses:

thread of the nut, a rotatable head or carrier J. SNOWDEN BELL, mounted upon the spindle, and a roller-tool I W. B. CORWIN. 

